Sole-leveling machine.



E. E. WINKLEY.

SOLE LEVELING MACHINE.

APPLICATION FILED AUG. 28, 1912.

Patented Feb. 23, 1915.

NORRIS PETERS ca, PHOTO-LITHQ, WASHINGTON D. C.

ERASIUS E. WINKLEY, F LYNN, MASSACHUSETTS, ASSIGNOR .TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

SOLE-LEVELING MACHINE.

Patented Feb. 23,1915.

To all whom it may concern Be itknown that I, EnAs'rUs E. WINKLEY, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements inv Sole-Levcling Machines; and I do hereby declare the. following. to be a full, clear, and exact description: of the. invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

Thepresent invention relates to sole leveling machines, and more particularly to that type of machine which comprises a leveling roll and a cooperating shoe supporting jack relatively movable to change the relative longitudinal position of the roll and jack.

In general, the leveling operation performed by this machine is satisfactory, but when operating upon what are known as fiddle-back shoes, in which the ball line and median line of the shank are characterized by sharply defined ridges, the roll tends to obliterate the ridges when moving thereover, detracting from the finished appearance of the sole.

The object of the present invention is to provide a machine of this character which will satisfactorily level the soles of shoes having sharply defined ridges formed upon the surface without tending to flatten out or otherwise'obliterate the ridges.

With this object in view, one feature of the invention consists in the provision'in a machine of this type having a leveling roll and a cooperating shoe supporting jack, of connected mechanism for automatically separating the roll and jack at certain predetermined intervals during the leveling operation to remove the roll from contact with the shoe sole.

Still further features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art fromthe following description.

In the accompanying drawings illustrating. the. preferred form of the invention; Figure 1 represents a side elevation of a leveling machine embodying the several features of the invention in their preferred form; Fig. 2 is a detail showing upon an enlarged scale, themechanism for removing.

theroll from contact with the sole; and Fig. .3 -1s a detail showing a cross section taken upontheline 33 of Fig. 2, looking in the direction ofthe arrows.

The machine shown in the illustrated embodiment of the invention is of the usual type. having a supporting frame 1 in which a shoe-supporting jack 2 is pivoted at 3 to oscillate beneath a leveling roll 4. The leveling roll is journaled in the outer end of a roll supporting arm 5 fulcrumed at 6 in the machine frame and connected with a tensionspring 7 to press the roll yieldingly upon the shoe sole. The jack is oscil lated beneath the roll by a rotary cam mounted upon the cam shaft 10 which is rotated in the usual manner from the drive shaft of the machine. As certain portions of the shoe sole when supported on the jack are higher than others, it is desirable to regulate the pressure exerted by the roll 4, and to this. end a peripheral cam 12 is mounted upon the shaft 10. This cam is engaged by a pivoted arm 13 which is yieldingly connected to the roll supporting arm 5 through the spring 7 The cam 12 serves not only to regulate the pressure exerted over the entire shoe sole irrespective of the height of certain portions of the sole, but may also serve to increase the pressure upon certain portions of the sole if so desired. The above features of construction are disclosed in the patent 'toWinkley, No. 610,314, dated September 6, 1898, and in consequence have been only briefly described herein.

In op'eratingupon certain classes of shoes in which it is desired-to have a well defined ridge marking in some cases the ball line, and inother cases both the ball line and median line of the shank, it is necessary to laterally and is traversel a plurality of times over one side of the shank and then once over the ball portion of the sole upon the same side. The cycle of operationis thenrepeated uponthe opposite side of the shoe,- the roll finally vbeingrocked into a horizontal position and moved out over the ball portion of the shoe to the-toe to terminate the leveling operation. Thus it will be seen that in order to level the above type of shoe satisfactorily, it is necessary to remove the roll from contact with the sole a plurality of times or in other words, each time that the roll passes over the ball line during the lengthwise traverse over the shoe. In addition, if the median line of the shank is to be marked by a ridge it is necessary to remove the roll from contact with the sole when traversing along the median line of the shank. To this end the roll supporting arm 5 is provided with an elevating rod 15 which is connected at its free end to an arm 16 pivotally supported in the machine frame at 17. The free end of the arm 16 engages with a path cam 18 indicated in dotted lines in Fig. 2 and secured to the cam shaft .10. In the illustrated embodiment of the invention the cam is arranged to elevate the roll each time that'it passes across the ball line of the shoe and also when the roll is traversing over the median line of the shank. In order. to allow the pressure of the roll when in contact with the shoe to be regulated independently of the elevating mechanism, the'latter is arranged to be automatically disconnected from the operating arm 16 when the free end of the arm 16 is depressed. To this end the arm 16, as shown clearly in Fig. 8, is connected to the lower end of the rod 15 through a one direction clutch indicated at 17. This clutch is provided with a vertical bore through which the rod 15 is arranged to slide freely and a recess adjacent to the bore having an inclined wall. A ball 19 is supported in the recess and is arranged to wedge between the inclined wall and the side of the rod 15 to clutch the rod to the member 17 when the arm 16 is raised. To disconnect the clutch automatically when the arm is depressed, a stop rod 20 projects through the member 17 into the recess and engages beneath the ball 10 to free the ball from between the inclined wall of the recess and the rod 15 and allow the elevating rod to slide freely through the member 17. With this construction, when the arm 16 is actuated by the cam 18 to raise the roll from contact with the shoe, the clutch is automatically operated to connect the rod 15 therewith, but when the arm 16 is depressed into an inoperative position, the ball 19 contacts with the stop rod 20 disconnecting the elevating rod 15 and arm 16 and allowing the elevating rod to move independently of the arm.

While it is preferred to employ the spe cific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modified without departing from the broader features of the invention.

The invention having been described, what is claimed is:

1. A leveling machine, having in combination, a leveling roll, a coiiperating shoe supporting jack, means for changing the relative longitudinal position of the roll and jack to cause the roll to traverse over the forepart and shank of the sole, and mechanism for automatically separating the roll and jack and for thereafter bringing the roll into contact with the shoe sole during the continuous relative movement of the jack in one direction.

2. A leveling machine, having in combination, a leveling roll, a shoe supporting jack, means for changing the relative longitudinal position of the roll and jack to cause the roll to traverse over the forepart and shank of a shoe sole, and mechanism for automatically raising the roll from contact with the shoe sole when positioned over the ball line and for thereafter depressing the roll to again contact with the shoe sole during the continuous relative movement of the jack in one direction.

3. A leveling machine, having in combination, a leveling roll, a shoe supporting jack, means for changing the relative longitudinal position of the roll and jack, an elevating rod connected with the roll, a cam, and connections between the cam and rod to actuate the rod and impart a plurality of elevating movements to remove the roll from contact with the shoe sole at predetermined intervals during the continuous movement of the jack in one direction.

l-. A leveling machine having, in combination, a leveling roll, a shoe supporting jack, means for changing the relative longitudinal position of the roll and jack, an clevating rod connected with the roll, a cam for actuating the rod at predetermined intervals during the leveling operation, and connections between the cam and rod arranged to be disconnected when the rod is depressed.

5. A leveling machine having, in combination, a leveling roll, a shoe supporting jack, means for changing the relative longitudinal position of the roll and jack, an elevating rod connected with the roll, an operating arm, a cam connected to the arm, a one direction clutch to connect the arm and elevating rod when the arm is raised, and means for rendering the clutch inoperative when the arm is in a depressed position.

ERASTUS E. I/VINKLEY.

Witnesses BURTON W. CARY, MIRRIAM CLEMENT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.

It is hereby certified that in Letters Patent No. 1,129,372, granted February 23, 1915, upon the application of Erastus E. Winkley, of Lynn, Massachusetts, for an improvement in Sole-Leveling Machines, errors appear in the printed specification requiring correction as follows: Page 1, line 105, for the Word traversel read traversed; page 2, line 45, for the reference-numeral 10 read 19; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 23rd day of March, A. D., 1915.

[SEAL-1 J. T. NEWTON,

Acting Commissioner of Patents. 

